If confirmed as a galaxy, a newly identified star system would be the faintest ever discovered—and could suggest there are others that remain to be found.

A galaxy that suddenly stopped forming new stars more than 13 billion years ago has been observed by astronomers.

The discovery raises big questions about widely accepted models of galaxy formation.

The extreme object could tell us more about the environment around black holes.

"This could completely shake up our understanding of how galaxies form," says Joseph Silk.

A team of astronomers, led by the University of Cambridge, has used the NASA/ESA/CSA James Webb Space Telescope to reveal, for the first time, what lies in the

Researchers have discovered the oldest black hole ever observed, dating from the dawn of the universe, and found that it is ‘eating’ its host galaxy to death.

Pictures of black holes have a white outline around them when photographed, due to one of black holes’ unique and key features.

Scientists have discovered 14 transient objects in a galaxy they've dubbed the "Christmas Tree Galaxy Cluster."